Mine roof support plate



FIG. 1 is a perspective view of a mine roof support plate showing our new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side view relative to FIG. 2.

FIG. 5 is a front view relative to FIG. 2;

FIG. 6 is a cross-sectional view taken in the direction of the arrows on line 6--6 of FIG. 2;

FIG. 7 is a cross-sectional view taken in the direction of the arrows on line 7--7 of FIG. 2;

The left side view is identical to the right side view, and the rear view is identical to the front view. 

The ornamental design for a mine roof support plate, substantially as shown and described. 